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bambuddy/static/index.html
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maziggy 91269f14fe fix(mqtt): report why a printer refused the connection instead of looping silently
A printer with a wrong access code gave no explanation anywhere. The connect
callback's failure branch was a bare `state.connected = False`, discarding the
CONNACK reason code the printer had just sent, so the only trace was paho's
follow-up disconnect -- logged every 30 seconds as "rc=Unspecified error",
which is exactly what a powered-off printer produces. In the report behind this
fix one of three printers had been in that loop for the whole capture, and
neither the log nor the support bundle could say why.

Bambu speaks MQTT 3.1.1, whose CONNACK return codes 4 and 5 paho maps onto
reason codes 134 and 135. Both are now logged with the printer's own reason
string and, for those two, the remedy: the access code is regenerated whenever
LAN Only or Developer Mode is toggled, so it has to be re-read from the screen.
The access code itself is never logged -- it would land in every bundle.

The reason is kept on the client as a stable slug and plumbed through
test_connection into the connection diagnostic, which now distinguishes two
cases it previously conflated. "The printer refused our credentials" is
asserted only when the printer said so; when all Bambuddy knows is that there
is no session, the text hedges and names the alternatives (rebooting, or
already at its limit of simultaneous connections). The old wording claimed the
access code was most likely wrong in both cases.

Frontend needed no change -- ConnectionDiagnostic already renders
`<status>_<reason>` variants with fallback to the plain per-status text, so an
unrecognised slug degrades to today's wording rather than a missing key.
2026-07-29 09:02:39 +02:00

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1.8 KiB
HTML

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<!-- L-4: Restrict Referer header to origin-only on cross-origin navigation so
sensitive tokens in query parameters are not leaked to third-party servers. -->
<meta name="referrer" content="strict-origin-when-cross-origin" />
<title>Bambuddy</title>
<!-- PWA Meta Tags -->
<meta name="description" content="Monitor and manage your Bambu Lab 3D printers" />
<meta name="theme-color" content="#00ae42" />
<meta name="mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="apple-mobile-web-app-title" content="Bambuddy" />
<!-- Manifest -->
<link rel="manifest" href="/manifest.json" />
<!-- Favicons -->
<link rel="icon" type="image/png" sizes="32x32" href="/img/favicon-32x32.png" />
<link rel="icon" type="image/png" sizes="16x16" href="/img/favicon-16x16.png" />
<link rel="apple-touch-icon" sizes="180x180" href="/img/apple-touch-icon.png" />
<!-- Splash screens for iOS -->
<link rel="apple-touch-startup-image" href="/img/android-chrome-512x512.png" />
<script type="module" crossorigin src="/assets/index-xPJs-OAQ.js"></script>
<link rel="stylesheet" crossorigin href="/assets/index-D4bpNaiw.css">
</head>
<body>
<div id="root"></div>
<!-- Service Worker Registration (skip on SpoolBuddy kiosk).
Kept as an external file so the CSP `script-src 'self'` covers it
without needing 'unsafe-inline' or per-build hashes. -->
<script src="/sw-register.js"></script>
</body>
</html>